Activity based Wallpaper manager

The ability to set different wallpaper for each activity is excellent in KDE, but it is very hard to browse through the cluttered collection of wallpaper in “Image” plugin

A wallpaper plugin is needed (Different from Slideshow as it does not allow to select a specific wallpaper) that would

(1) Assign different wallpaper folder for each activity similar to Slideshow based plugin for selection

(2) Images only appear in selection screen once a folder is selected to avoid cluttered view